An aboslutelty wonderful timewaster has been Brotato. Someone described my relationship to it quite well: it's like solitaire. Whip it out every now and then for a quick timewaster, win or loose, it's fun.
Boltgun was great too! So much Warhammer-infused fun.
Tinder is very superficial and a hard platform to find people on. The gender ratio is very skewed and it turns against itself, since the competition for attention is so hard. This benefits the app though, since it makes peopel waste money on superlikes and whatnot - so they won't ever try to fix it.
You definitely aren't too old to date around and have fun meeting people. Mingling around in real life might be easier, since you don't have to rely on a single picture and a few lines of text to impress someone.